CN105110467B - A kind of denitrification and phosphorus removal integration biological reaction pool of multi-mode operation - Google Patents
A kind of denitrification and phosphorus removal integration biological reaction pool of multi-mode operation Download PDFInfo
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- CN105110467B CN105110467B CN201510533919.1A CN201510533919A CN105110467B CN 105110467 B CN105110467 B CN 105110467B CN 201510533919 A CN201510533919 A CN 201510533919A CN 105110467 B CN105110467 B CN 105110467B
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Abstract
The invention discloses a kind of denitrification and phosphorus removal integration biological reaction pool of multi-mode operation, the biological reaction pool includes biological selecting area, pre- anoxic zone, main reaction region, water distributing area, exhalant region and interior backflow canal；Main reaction region includes A areas, B areas and C areas；A areas can be used as anaerobic zone or anoxic zone when running, B areas and C areas can be used as anaerobic zone or anoxic zone when running as aerobic zone.Biological selecting area is located at reaction tank most leading portion, is located at provided with pre- anoxic zone, water distributing area between A areas, B areas and C areas thereafter, and exhalant region is between B areas and C areas, interior backflow canal connection exhalant region and water distributing area.The denitrification and phosphorus removal integration biological reaction pool of multi-mode operation provided by the invention, with the characteristics of intensive, occupation of land is small, number of devices is few, can be with multi-mode alternate run, pattern switching freedom and flexibility, anti impulsion load, high-efficiency biological nitrogen and phosphorus removal can be realized in the case where influent quality amplitude of variation is larger.
Description
Technical field
The present invention relates to a kind of sewage-treatment plant, in particular it relates to which a kind of can be with the denitrogenation dephosphorizing one of multi-mode operation
Body biological reaction pool.
Background technology
In recent years, sewage disposal come into should efficient organics removal high-efficient denitrification and dephosphorization again advanced treating rank
Section, high-efficiency biological nitrogen and phosphorus removal technology turns into the study hotspot of current sewage treatment area, when influent quality amplitude of variation is larger
When, ensure that efficient biological carbon and phosphorous removal effect is more important.At present, or standard biologic reaction tank is by just putting AAO（Anaerobism-
Anaerobic-aerobic）Pattern or inversion A AO（Anoxic-anaerobic-aerobic）Mode operation, otherwise press alternative expression mode operation, as SBR,
The techniques such as UNITANK, operational mode is more single, when influent quality amplitude of variation is larger and the exigent feelings of stable water outlet
Under condition, process above limits the development of sewage treatment industry to a certain extent.
The content of the invention
It is an object of the invention to provide a kind of biological reaction pool for sewage disposal, by each module organic assembling at one
Completed in pond, reach effect intensive, that occupation of land is small, number of devices is few, both can just put AAO（Anaerobic- anoxic- oxic）Pattern is transported
OK, also can inversion A AO（Anoxic-anaerobic-aerobic）Mode operation, can also alternately it be transported according to water quality situation, multi-mode alternate run
Row mode is up to more than 6 kinds, various pattern switching freedom and flexibility, and anti impulsion load can be larger in influent quality amplitude of variation
In the case of realize high-efficiency biological nitrogen and phosphorus removal.
In order to achieve the above object, the invention provides a kind of denitrification and phosphorus removal integration biological respinse of multi-mode operation
Pond, wherein, the biological reaction pool includes biological selecting area, pre- anoxic zone, main reaction region, water distributing area, exhalant region and interior backflow
Canal；Described main reaction region includes A areas, B areas and C areas；Can be used as anaerobic zone or anoxic zone during described A areas operation, B areas with
C areas can be used as anaerobic zone or anoxic zone when running as aerobic zone.The integral biological reaction tank both can just put AAO
（Anaerobic- anoxic- oxic）Mode operation, also can inversion A AO（Anoxic-anaerobic-aerobic）Mode operation, can also be according to water quality feelings
Condition, multi-mode alternate run, alternate run pattern is up to more than 6 kinds；Operational mode is various, and switching is flexible, can adapt to
Influent quality significantly change simultaneously meets effluent quality requirement.
The denitrification and phosphorus removal integration biological reaction pool of above-mentioned multi-mode operation, wherein, described biological selecting area is located at
Reaction tank most leading portion, reacted for pulling flow type in area, water inlet pipe and mechanical agitator are set, the mechanical agitator can be diving
Agitator can also be the other types such as turbine stirrer；Pulling flow type reaction is chemically reacted with plug-flow liquid form, is worn
Identical order is discharged when the liquid material particle crossed is with entering, and its residence time is equal to the theoretical treatment time, reduces or disappear
Except the peptizaiton of longitudinal direction.It is most common a kind of form in water treatment procedure；Flexible joint is set on described water inlet pipe,
Facilitate the installation of reaction tank inlet and outlet piping to be connected, be also prevented from reaction tank and build up pipeline dislocation caused by rear differential settlement and break
Phenomenon；The top of the biological selecting area is provided with exteenal reflux sludge canal, and adjustable checkgate is provided with canal or adjusts stream tuning valve, can be led to
The ratio for crossing reasonable adjusting exteenal reflux sludge and water inlet mixing realizes bioselection, suppresses the growth of der Pilz, filters out to water
Favourable Zoogloea bacteria is handled, ensures the stable operation of reaction tank；The processing time of biological selecting area described in during operation
Hydraulic detention time is 0.2 ~ 0.5h.
The denitrification and phosphorus removal integration biological reaction pool of above-mentioned multi-mode operation, wherein, described biological selecting area rear
Provided with pre- anoxic zone, by setting partition wall to be distinguished with bioselection, partition wall top is provided with high-order water hole for the pre- anoxic zone,
Water hole can prevent the short stream of sewage, improve reaction effect；Reacted in described pre- anoxic zone for pulling flow type, mechanical agitation is set
Device, the mechanical agitator can be that submersible agitator can also be the other types such as turbine stirrer；Described exteenal reflux is dirty
Mud canal extends to pre- anoxic zone from the biological selecting area, and exteenal reflux sludge conditioning weir is provided with the access with pre- anoxic zone
Door adjusts stream tuning valve；The area can eliminate adjoint dissolved oxygen in returned sludge in the dissolved oxygen and water inlet of molecular state to anaerobism
The adverse effect in area, realizes efficient dephosphorization.Partition wall bottom sets small-bore relief tube, to strengthen curtain wall structure stability and subtract
Small wall thickness.The processing time of pre- anoxic zone described in during operation is 0.5 ~ 1h.
The denitrification and phosphorus removal integration biological reaction pool of above-mentioned multi-mode operation, wherein, described A areas lead to pre- anoxic zone
Cross partition wall to separate, partition wall bottom is provided with low level water hole, and sewage can be from there into water hole can prevent the short stream of sewage, carry
High reaction effect；Submersible water impeller is set in A areas, aerator and submersible water impeller, described exposure are respectively provided with B areas and C areas
Device of air is surface aeration oxygen replenishing equipment or the micro-hole aerator for being placed in bottom of pond；Divide between described A areas and B areas, B areas and C areas
Do not separated by partition wall.A areas, B areas and C district's groups into main reaction region in for be thoroughly mixed formula reaction, main reaction region processing time
It can be calculated and determined according to denitrogenation dephosphorizing target call.
The denitrification and phosphorus removal integration biological reaction pool of above-mentioned multi-mode operation, wherein, described C areas, at it by water inlet
Section sets full pond blow-down pipe and installs valve, and described full pond blow-down pipe includes middle position blow-down pipe and bottom blow-down pipe, middle position are put
Debug cultivation when blank pipe is built up for reaction tank, bottom blow-down pipe is cut off the water maintenance for full pond；Between the A areas and the B areas
It is additionally provided with built-in pipe and can be connected by the built-in pipe, described built-in pipe is ductile iron pipe or steel pipe, and built-in pipe leans on A areas at it
One end sets gate or valve is set in the middle part of built-in pipe, when reaction tank is complete with anoxic-anaerobic-aerobic mode operation and reaction tank
When pond is vented, the gate or valve of built-in pipe are opened.
The denitrification and phosphorus removal integration biological reaction pool of above-mentioned multi-mode operation, wherein, between described B areas and C areas, its
Partition wall top is provided with channel, connects exhalant region and water distributing area, and the channel is described interior backflow canal；Described interior backflow canal exists
Gate is respectively equipped with exhalant region or water distributing area junction, the bottom of interior backflow canal is communicated with hole.
The denitrification and phosphorus removal integration biological reaction pool of above-mentioned multi-mode operation, wherein, described interior backflow canal can be simultaneous
Do and surmount canal, when B areas and C areas equipment stop transport when overhauling, sewage can after biological selecting area, pre- anoxic zone, the processing of main reaction A areas
Directly surmount to exhalant region.
The denitrification and phosphorus removal integration biological reaction pool of above-mentioned multi-mode operation, wherein, described water distributing area is located at A areas, B
Between area and C areas and three regions can be connected, the planar profile of the water distributing area is triangle, three sides respectively with A areas, B
Area and C areas are adjacent, and set the valve or weir gate that can be connected with A areas, B areas and C areas respectively, can both distribute from A areas
Water inlet, can also control and distribute from it is interior backflow canal nitrification liquid.
The denitrification and phosphorus removal integration biological reaction pool of above-mentioned multi-mode operation, wherein, described exhalant region be located at B areas and
Between C areas, it is symmetrical arranged with water distributing area；Described exhalant region planar profile is triangle, base close to biological reaction pool one
Side is simultaneously parallel with the side of the biological reaction pool, another both sides it is adjacent with B areas and C areas respectively and respectively set can connect main reaction
B areas and the valve or weir gate in C areas；Outlet pipe and at least 2 interior reflux pumps are set in described exhalant region, and sets and surmounts control
Valve；When described interior reflux pump is opened, pumping nitrification liquid is along interior backflow canal to water distributing area, further according to needs by water distributing area to A
Any one in area, B areas, C areas；Described interior reflux pump is pump through walls or submersible axial flow pump, pump preferably through walls；Described
Flexible joint is set on outlet pipe, facilitates the installation of reaction tank inlet and outlet piping to be connected, be also prevented from reaction tank build up it is rear uneven heavy
Pipeline dislocation and tensile phenomenon caused by drop.
The denitrification and phosphorus removal integration biological reaction pool of above-mentioned multi-mode operation, wherein, in the water distributing area and exhalant region
Valve and weir gate be both designed as bi-directional compression；Described interior backflow canal, when reflux pump is opened, interior backflow canal to water distributing area lock
Door is opened；Canal is flowed back inside as canal is surmounted in use, interior reflux pump is closed, and water distributing area to B areas and C areas valve or weir gate are closed
Close, interior backflow canal to water distributing area gate and interior backflow canal to exhalant region gate are all opened；At B areas and C areas normal operation, interior time
It is normally closed to exhalant region gate to flow canal.
The denitrification and phosphorus removal integration biological reaction pool of multi-mode operation provided by the invention has advantages below：
（1）Each module organic assembling of biological reaction pool is completed in a pond, intensive, occupation of land is small, number of devices is few, and one
Body biological reaction pool both can just put AAO（Anaerobic- anoxic- oxic）Mode operation, also can inversion A AO（Anoxic-anaerobic-aerobic）
Mode operation, can also be according to water quality situation, and multi-mode alternate run, alternate run pattern is up to more than 6 kinds；Operational mode is more
Sample, switching is flexible, can adapt to influent quality significantly change and meets effluent quality requirement.
（2）Reaction tank leading portion sets biological selecting area, can pass through reasonable adjusting exteenal reflux sludge and the ratio of water inlet mixing
Bioselection is realized, suppresses the growth of der Pilz, filters out the Zoogloea bacteria favourable to water process, ensures reaction tank stabilization
Operation.
（3）Reaction tank sets pre- anoxic zone, can eliminate adjoint molten in the dissolved oxygen and water inlet of molecular state in returned sludge
Oxygen is solved to the adverse effect of anaerobic zone, realizes efficient dephosphorization.
（4）When reaction tank alternate run, according to influent quality, may choose whether to run interior reflux pump.Such as work as water inlet
When total nitrogen concentration is relatively low, interior reflux pump can not be run, interior flow back is realized by the intercommunicating pore between aerobic zone and anoxic zone；When entering
When water total nitrogen concentration is higher, enables interior reflux pump and increase interior backflow, realize efficient denitrification.
（5）Interior backflow canal, which also serves as, surmounts canal use, realizes function and service, does not increase extra quantities, be conveniently aerated and stir
Mix device overhaul of the equipments and operational management.
Brief description of the drawings
Fig. 1 is the structural representation of the denitrification and phosphorus removal integration biological reaction pool of the multi-mode operation of the present invention.
Fig. 2 is diagrammatic cross-section at the aa of the denitrification and phosphorus removal integration biological reaction pool of the multi-mode operation of the present invention.
Fig. 3 is the exhalant region diagrammatic cross-section of the denitrification and phosphorus removal integration biological reaction pool of the multi-mode operation of the present invention.
Fig. 4 is just putting AAO patterns for the first of the denitrification and phosphorus removal integration biological reaction pool of the multi-mode operation of the present invention
Schematic diagram.
Fig. 5 is that AAO patterns are just being put in second of denitrification and phosphorus removal integration biological reaction pool of the multi-mode operation of the present invention
Schematic diagram.
Fig. 6 is the inversion A AO pattern diagrams of the denitrification and phosphorus removal integration biological reaction pool of the multi-mode operation of the present invention.
Fig. 7 is the alternate run schematic diagram of the denitrification and phosphorus removal integration biological reaction pool of the multi-mode operation of the present invention.
Embodiment
The embodiment of the present invention is further described below in conjunction with accompanying drawing.
As shown in figure 1, the denitrification and phosphorus removal integration biological reaction pool of multi-mode operation provided by the invention, is selected comprising biology
Select area 22, pre- anoxic zone 23, main reaction region 24, water distributing area 25, exhalant region 26 and interior backflow canal 27.
The biological reaction pool leading portion sets biological selecting area 22, pre- anoxic zone 23.Water inlet enters bioselection from water inlet pipe 1
Area 22；Exteenal reflux sludge enters exteenal reflux sludge canal 17 from exteenal reflux sludge pipe 3, and exteenal reflux sludge canal 17 accesses biological selecting area
22 and pre- anoxic zone 23 is extended to, at least provided with 2 adjustable checkgates or stream tuning lock is adjusted at its access with pre- anoxic zone 23
Door 4 carries out pro rate and bioselection is realized in water inlet mixing, suppresses the growth of der Pilz, filters out the bacterium favourable to water process
Micelle bacterium, ensure the stable operation of reaction tank.
Pre- anoxic zone 23 is located at the rear of biological selecting area 22, sets partition wall to be separated with biological selecting area 22, partition wall top is set
High-order water hole 6 is put, is reacted in area for pulling flow type, mechanical agitator 5 is set.Mechanical agitator 5 can be submersible agitator
Can be the other types such as turbine stirrer.The reaction zone can eliminate the companion in the dissolved oxygen and water inlet of molecular state in returned sludge
Adverse effect with dissolved oxygen to anaerobic zone, realizes efficient dephosphorization.Partition wall bottom sets small-bore relief tube 7, to strengthen every
Wall construction stability and reduction wall thickness.
Reacted to be thoroughly mixed formula main reaction region 24：A areas are separated with pre- anoxic zone 23 by partition wall, only set diving propelling
Device 9, sewage enter from partition wall bottom low level water hole 8, can be used as anaerobic zone or anoxic zone during operation, B areas and C areas are respectively provided with exposure
Device of air and submersible water impeller 9, aerobic zone can be used as to be used as anaerobic zone or anoxic zone during operation.B areas and the setting in C areas
Aerator can be placed in the micro-hole aerator or surface aeration oxygen replenishing equipment of bottom of pond.High-order water hole 6 or low
Position water hole 8 can prevent the short stream of sewage, improve reaction effect.It is shown in Figure 2.
C areas set full pond blow-down pipe by inlet segment and install valve 21, and full pond blow-down pipe includes middle position blow-down pipe 19 and bottom
Portion's blow-down pipe 20, cultivation is debugged when middle position is vented when being built up for reaction tank, cut off the water maintenance for full pond when bottom is vented.
A areas in addition to being connected by water distributing area 25, are also connected with B areas by built-in pipe 16, and built-in pipe is ductile iron pipe or steel pipe,
Built-in pipe sets gate by A areas one end at it or sets valve at the middle part of built-in pipe 16, when reaction tank inversion A AO mode operations and
When the full pond of reaction tank is vented, the gate or valve are opened.
Water distributing area 25 is located between A areas, B areas and C areas, and planar profile is triangle, three sides respectively with A areas, B areas and C areas
It is adjacent, the valve or weir gate 10,11 that can connect main reaction A areas, B areas and C areas are set respectively in area, can both be distributed from A
The water inlet in area, it can also control and distribute the nitrification liquid from interior backflow canal 27.
For exhalant region 26 between B areas and C areas, planar profile is triangle, base close to the side of biological reaction pool simultaneously
Parallel with the side of the biological reaction pool, another both sides are adjacent with B areas and C areas respectively.The exhalant region 26 is symmetrically set with water distributing area 25
Put, outlet pipe 15 and at least 2 interior reflux pumps 13 are set in exhalant region 26, and are set and surmounted control valve.In exhalant region 26 also
The valve or weir gate 14 in main reaction B areas and C areas can be connected by setting respectively.It is shown in Figure 3.
Interior backflow canal 27 connects exhalant region 26 and water distributing area 25, is the channel positioned at B areas and C areas mid-board top, interior time
The bottom of stream canal 27 is communicated with hole 28.Interior backflow canal 27 is being respectively equipped with gate 18 with exhalant region 26 or the junction of water distributing area 25
With gate 12.When interior reflux pump 13 is opened, gate 12 is opened, and pumping nitrification liquid is along interior backflow canal 27 to water distributing area 25, Ran Hougen
Needed according to operating mode, by any one in water distributing area 25 to A, B, C area.
Interior backflow canal 27, which can also serve as, surmounts canal, and when the aeration and mixing plant in B areas and C areas, which are stopped transport, to be overhauled, sewage is through life
Can directly it surmount to exhalant region 26 after thing selection area 22, pre- anoxic zone 23, the processing of A areas.
Water distributing area 25 and valve in exhalant region 26 or weir gate 10,11,14 are bi-directional compression：When interior reflux pump 13 is opened,
Interior backflow canal 27 to the gate 12 of water distributing area 25 is opened；Interior backflow canal 27 is as surmounting canal in use, interior reflux pump 13 is closed, water distribution
Area 25 to B areas and C areas weir gate 11 are closed, and interior backflow canal 27 to the gate 12 of water distributing area 25 and interior backflow canal 27 are to the gate of exhalant region 26
18 all open.When B areas and C areas normal operation, interior backflow canal 27 is normally closed to the gate 18 of exhalant region 26.
Flexible joint 2 is set on reaction tank water inlet pipe 1 and outlet pipe 15, facilitates the installation of reaction tank inlet and outlet piping to be connected,
It is also prevented from reaction tank and builds up pipeline dislocation and tensile phenomenon caused by rear differential settlement.
Integral biological reaction tank provided by the invention using multi-mode operation handles the method for sewage, its operational mode
It is as follows：
1 is just putting AAO mode operations：2 kinds.
（1）AAO patterns 1 are just being put, as shown in Figure 4.
Under the pattern, main reaction A areas are microorganism is efficiently released phosphorus, main reaction B area's conducts as anaerobic zone major function
Anoxic zone major function is to complete denitrification denitrogenation, and main reaction C areas are to complete BOD as aerobic zone major function
（Biochemical Oxygen Demand, biochemical oxygen demand (BOD)）Degraded and completion nitrification, interior reflux pump 13 need one under the operating mode
Directly run and nitrification liquid is delivered to main reaction B areas by water distributing area 25, water distributing area 25 to main reaction C area's valves or weir gate 11 is closed
Close.Because water-inlet carbon source preferentially meets dephosphorization, the pattern can be used when denitrogenation is less demanding.
（2）AAO patterns 2 are just being put, as shown in Figure 5.
Under the pattern, main reaction A areas are microorganism is efficiently released phosphorus, main reaction C area's conducts as anaerobic zone major function
Anoxic zone major function is to complete denitrification denitrogenation, and main reaction B areas are to complete BOD degradeds and complete as aerobic zone major function
Nitrification, interior reflux pump 13 needs to run always under the operating mode is delivered to main reaction C areas, water distributing area by nitrification liquid by water distributing area 25
25 close to main reaction B area's valves or weir gate 11.Because water-inlet carbon source preferentially meets dephosphorization, can be used when denitrogenation is less demanding should
Pattern.
2. inversion A AO mode operations：1 kind, as shown in Figure 6.
Under the pattern, main reaction A areas are to complete denitrification denitrogenation as anoxic zone major function, and main reaction B areas are as detesting
Oxygen area major function is microorganism is efficiently released phosphorus, and main reaction B areas are to complete BOD degradeds and complete as aerobic zone major function
Nitrification, interior reflux pump 13 needs to run always under the operating mode is delivered to main reaction A areas by nitrification liquid by the weir gate of water distributing area 25, matches somebody with somebody
Pool 25 to main reaction B areas and C areas valve or weir gate 11 are closed.Because water-inlet carbon source preferentially meets denitrogenation, dephosphorization is less demanding
When can use the pattern.
3. alternate run：As shown in fig. 7, so that 8h is a cycle as an example, in 4 stages of each pattern point, enumerates 6 kinds of patterns and see
Table 1 below, suitable operating condition is selected according to the height of nitric efficiency.
The alternate run mode parameter table of table 1..
Stage I, main reaction A areas are microorganism is efficiently released phosphorus as anaerobic zone major function, and main reaction B areas are as anoxic
Area's major function is to complete denitrification denitrogenation, and main reaction C areas are to complete BOD degradeds and completion nitre as aerobic zone major function
Change, interior reflux pump 13 needs to run always under the operating mode is delivered to main reaction B areas, water distributing area 25 by nitrification liquid by water distributing area 25
Closed to main reaction C area's valves or weir gate 11.
Stage II, the anoxic zone by the stage I are that main reaction B areas switch to aerobic zone, on the one hand the waterpower of aerobic zone be stopped
Stay time i.e. processing time to extend, ensure that polyP bacteria fully absorbs phosphorus, on the other hand can make the mixed liquor into second pond
With higher dissolved oxygen, it is not in that anaerobic denitrifying causes Mud up-floating to ensure second pond.
In the stage III, it is the symmetry status in stage I, by anoxic zone and aerobic zone exchange function, improves the sludge loading of system,
I.e. main reaction C areas are to complete denitrification denitrogenation as anoxic zone major function, and main reaction B areas have been as aerobic zone major function
Degraded into BOD and complete nitrification, interior reflux pump 13 needs to run always under the operating mode and is delivered to nitrification liquid by water distributing area 25
Main reaction C areas, water distributing area 25 to main reaction B area's valves or weir gate 11 are closed.
In the stage IV, be the symmetry status in stage II, and changeover portion, but water (flow) direction is opposite with the stage II.
The denitrification and phosphorus removal integration biological reaction pool of multi-mode operation provided by the invention, have it is intensive, take up an area it is small, set
The advantages of for quantity less, it both can just put AAO（Anaerobic- anoxic- oxic）Mode operation, also can inversion A AO（Anoxic-anaerobism-good
Oxygen）Mode operation, can also be according to water quality situation, multi-mode alternate run, and alternate run pattern is up to more than 6 kinds, various patterns
Switch freedom and flexibility, anti impulsion load, can realize that high-efficiency biological denitrification removes in the case where influent quality amplitude of variation is larger
Phosphorus.
Although present disclosure is discussed in detail by above preferred embodiment, but it should be appreciated that above-mentioned
Description is not considered as limitation of the present invention.After those skilled in the art have read the above, for the present invention's
A variety of modifications and substitutions all will be apparent.Therefore, protection scope of the present invention should be limited to the appended claims.
Claims (8)
1. the denitrification and phosphorus removal integration biological reaction pool of a kind of multi-mode operation, it is characterised in that the biological reaction pool includes life
Thing selects area（22）, pre- anoxic zone（23）, main reaction region（24）, water distributing area（25）, exhalant region（26）And interior backflow canal（27）；
Described main reaction region（24）Include A areas, B areas and C areas；Described A areas can be used as anaerobic zone or anoxic zone, B areas when running
Anaerobic zone or anoxic zone can be can be used as when being run with C areas as aerobic zone；
Described A areas and pre- anoxic zone（23）Separated by partition wall, partition wall bottom is provided with low level water hole（8）, sewage can be from
Middle entrance；Submersible water impeller is set in A areas（9）, aerator and submersible water impeller are respectively provided with B areas and C areas（9）, it is described
Aerator is surface aeration oxygen replenishing equipment or the micro-hole aerator for being placed in bottom of pond；Between described A areas and B areas, B areas and C areas
Separated respectively by partition wall；
Between described B areas and C areas, its partition wall top is provided with channel, connects exhalant region（26）And water distributing area（25）, the channel is
Described interior backflow canal（27）；Described interior backflow canal（27）With exhalant region（26）And water distributing area（25）Junction is respectively equipped with
Gate；
Described biological selecting area（22）Positioned at reaction tank most leading portion；
The biological selecting area（22）Rear is provided with pre- anoxic zone（23）；
Described water distributing area（25）Between A areas, B areas and C areas and three regions can be connected；
Described exhalant region（26）Between B areas and C areas, with water distributing area（25）It is symmetrical arranged.
2. the denitrification and phosphorus removal integration biological reaction pool of multi-mode operation as claimed in claim 1, it is characterised in that described
Biological selecting area（22）Interior setting water inlet pipe（1）And mechanical agitator（5）；Described water inlet pipe（1）Upper setting flexible joint
（2）；The biological selecting area（22）Top be provided with exteenal reflux sludge canal（17）, canal is interior to be provided with adjustable checkgate or adjusts stream directional valve
Door（4）；Biological selecting area described in during operation（22）Processing time be 0.2 ~ 0.5h.
3. the denitrification and phosphorus removal integration biological reaction pool of multi-mode operation as claimed in claim 2, it is characterised in that described pre-
Anoxic zone（23）By setting partition wall and biological selecting area（22）Separate, partition wall top is provided with high-order water hole（6）；Described is pre-
Anoxic zone（23）Interior setting mechanical agitator（5）；Described exteenal reflux sludge canal（17）From the biological selecting area（22）Extension
To pre- anoxic zone（23）, and with pre- anoxic zone（23）Access at be provided with exteenal reflux sludge conditioning weir gate or adjust stream tuning valve
（4）；Pre- anoxic zone described in during operation（23）Processing time be 0.5 ~ 1h.
4. the denitrification and phosphorus removal integration biological reaction pool of multi-mode operation as claimed in claim 1, it is characterised in that described
C areas, full pond blow-down pipe is set by inlet segment at it and valve is installed, described full pond blow-down pipe includes middle position blow-down pipe（19）With
Bottom blow-down pipe（20）, middle position blow-down pipe（19）Cultivation, bottom blow-down pipe are debugged when being built up for reaction tank（20）For full pond
Cut off the water maintenance；Built-in pipe is additionally provided between the A areas and the B areas（16）And the built-in pipe can be passed through（16）Connection, it is described
Built-in pipe（16）For ductile iron pipe or steel pipe, built-in pipe（16）Gate is set or in built-in pipe by A areas one end at it（16）Middle part
Valve is set, when reaction tank is vented with anoxic-anaerobic-aerobic mode operation and the full pond of reaction tank, built-in pipe（16）Gate
Or valve is opened.
5. the denitrification and phosphorus removal integration biological reaction pool of multi-mode operation as claimed in claim 1, it is characterised in that described
Interior backflow canal（27）It can also serve as and surmount canal, when B areas and C areas equipment stop transport when overhauling, sewage is through biological selecting area（22）, it is pre- lack
Oxygen area（23）, A areas processing after can directly surmount to exhalant region（26）.
6. the denitrification and phosphorus removal integration biological reaction pool of multi-mode operation as claimed in claim 1, it is characterised in that described to match somebody with somebody
Pool（25）Planar profile be triangle, three sides are adjacent with A areas, B areas and C areas respectively, and respectively set can be with A areas, B areas
The valve or weir gate being connected with C areas.
7. the denitrification and phosphorus removal integration biological reaction pool of multi-mode operation as claimed in claim 1, it is characterised in that described
Exhalant region（26）Planar profile is triangle, described exhalant region（26）Interior setting outlet pipe（15）At least 2 interior reflux pumps
（13）, and set and surmount control valve；Described interior reflux pump（13）During unlatching, nitrification liquid is pumped along interior backflow canal（27）To matching somebody with somebody
Pool（25）, then by water distributing area（25）Any one into A areas, B areas, C areas；Described interior reflux pump（13）For pump through walls or
Submersible axial flow pump；Described outlet pipe（15）Upper setting flexible joint（2）.
8. the denitrification and phosphorus removal integration biological reaction pool of multi-mode operation as claimed in claim 7, it is characterised in that described
Interior backflow canal（27）, in interior reflux pump（13）During unlatching, interior backflow canal（27）To water distributing area（25）Gate is opened；Flow back canal inside
（27）As surmounting canal in use, interior reflux pump（13）Close, water distributing area（25）Closed to B areas and C areas valve or weir gate, interior time
Flow canal（27）To water distributing area（25）Gate and interior backflow canal（27）To exhalant region（26）Gate is all opened；Normally transported in B areas and C areas
During row, interior backflow canal（27）To exhalant region（26）Gate is normally closed.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510533919.1A CN105110467B (en) | 2015-08-27 | 2015-08-27 | A kind of denitrification and phosphorus removal integration biological reaction pool of multi-mode operation |
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| CN106745738B (en) * | 2016-12-20 | 2020-10-13 | 上海城投污水处理有限公司 | Sewage treatment tank and treatment process |
| CN106830322A (en) * | 2017-03-02 | 2017-06-13 | 南京市市政设计研究院有限责任公司 | It is a kind of suitable for low CN than modified form AAO ponds that sewage/wastewater is administered |
| CN109534500A (en) * | 2018-05-03 | 2019-03-29 | 哈尔滨工业大学（威海） | One kind passing through multi-functional A2The method that O technique optimizes denitrogenation dephosphorizing |
| CN108675449B (en) * | 2018-05-03 | 2021-02-23 | 南京大学 | Device and method for treating ammonia nitrogen wastewater |
| CN109467189A (en) * | 2018-12-20 | 2019-03-15 | 北京博汇特环保科技股份有限公司 | Biochemical reactor |
| CN114162969B (en) * | 2021-12-06 | 2023-05-09 | 宇星环保工程有限公司 | Bardenpho denitrification and dephosphorization system capable of operating in multiple modes and treatment process |
| CN114604967B (en) * | 2022-03-11 | 2023-06-23 | 青岛思普润水处理股份有限公司 | MBBR (moving bed biofilm reactor) reinforced AOA (automated optical inspection) and AAO (anaerobic-anoxic-oxic) dual-mode operation method based on circulating flow |
| CN114604968B (en) * | 2022-03-11 | 2022-12-20 | 青岛思普润水处理股份有限公司 | Aerobic adjustable land-saving AOA and AAO dual-mode sewage biochemical system and operation method |
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| KR100235250B1 (en) * | 1997-06-12 | 1999-12-15 | 양인모 | Wastewater treatment device for removing nitrogen and phosphorus using multi-stage anoxic reactors |
| JP2006088022A (en) * | 2004-09-22 | 2006-04-06 | Sumitomo Heavy Ind Ltd | Operation control method of oxidation ditch, and oxidation ditch |
| CN1329316C (en) * | 2005-12-19 | 2007-08-01 | 东南大学 | Activated sludge dephosphorizing and denitrifying method with alternated water intake from multi-spots |
| CN202864999U (en) * | 2012-11-08 | 2013-04-10 | 中国市政工程西南设计研究总院 | CASS (cyclic activated sludge system) reaction tank for enhanced nitrogen and phosphorus removal |
| CN203545784U (en) * | 2013-10-31 | 2014-04-16 | 四川永昊环保科技有限公司 | Combined type oxidation ditch with external sedimentation basin |
| CN204999699U (en) * | 2015-08-27 | 2016-01-27 | 上海市政工程设计研究总院（集团）有限公司 | Nitrogen and phosphorus removal integration biological reaction pond of multi -mode operation |
| CN105110468B (en) * | 2015-08-27 | 2018-04-10 | 上海市政工程设计研究总院（集团）有限公司 | A kind of method that integral biological reaction tank using multi-mode operation handles sewage |
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